no indication of electrical power

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! It sounds like your Acura TL is having a "lights out" moment. If there's no indication of electrical power and even the doors and trunk won't open, the first suspect is usually the battery. It might be as dead as a doornail, so check the battery connections for corrosion or looseness. If the battery's fine, the issue could be with the main fuse or a problem with the ignition switch. It's like when your remote control stops working, and you realize it's not the batteries but the remote itself. If you have a multimeter handy, you can check for voltage at the battery and fuses. If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554.